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I . If dry ice is used , a maximum of 5 pounds is allowed <br /> by Federal Express without special documents <br /> (documents are easy to obtain but just not necessary <br /> for under 5 pounds ) . Simply write "ORM-A dry ice , " <br /> " pounds , for research" on outside packaging <br /> and on regular airbill under classification. UPS <br /> does not accept dry ice. <br /> J. Make yourself a supplies list necessary before <br /> going into the field . <br /> K. Soil cores kept a 4 degrees C are only viable for up <br /> to 7 days when aromatic hydrocarbons are involved . <br /> The lab will 'prepare them in methanol as above once <br /> in the lab, but we will need a call ahead of time to <br /> schedule personnel. <br /> 4 . For field-prepping (Step 2B above ) : <br /> A. Obtain prepared sample containers from the labora- <br /> tory.. Order for 4 of samples intended and add 50% . <br /> This should be sufficient for QA requirements <br /> (below) , ,breakage, and additional samples taken by <br /> discretion of sampler. <br /> NB. Organize containers consecutively - they are all <br /> numbered and pre-weighed. Make a necessary supplies <br /> list before going into the field. <br /> C. For a 6" liner section retrieved from the spoon <br /> sampler, spread a 12" square piece of broiler <br /> (heavy) aluminum foil and slice it lengthwise with <br /> a clean stainless steel spatula. <br /> D. Immediately sample with a coring syringe with plunger <br /> removed. Poke tube into mid-section cf core ( into <br /> undisturbed soil ) to capture a 1/2 to 1 inch plug. <br /> E. Immediately transfer to the sample vial with <br /> methanol by using plunger. Clean around lip of vial <br /> to remove soil with clean laboratory paper towelling <br /> CAUTION: WORK ONLY IN WELL VENTILATED AREA. DO NOT <br /> BREATH METHANOL VAPOR. IT IS TOXIC. <br /> SEE RSDS ATTACHED. <br />